<html>
<head>
	<meta charset="UTF-8">
	<meta content="IE=edge" http-equiv="X-UA-Compatible">
	<meta content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no, width=device-width" name="viewport">
	<title>3407：[Usaco2009 Oct]Bessie's Weight Problem 贝茜的体重问题</title>
	<!-- css -->
	<link href="../css/base.min.css" rel="stylesheet">
	<link href="../css/project.min.css" rel="stylesheet">
	
	<!-- favicon -->
	<!-- ... -->
</head>
<body class="page-brand">
	<header class="header header-transparent header-waterfall ui-header">
		<ul class="nav nav-list pull-left">
			<li>
				<a data-toggle="menu" href="#menu">
					<span class="icon icon-lg">menu</span>
				</a>
			</li>
		</ul>
		<a class="header-logo header-affix-hide margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[Usaco2009 Oct]Bessie's Weight Problem 贝茜的体重问题</a>
		<span class="header-logo header-affix margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[Usaco2009 Oct]Bessie's Weight Problem 贝茜的体重问题</span>
	</header>
	<nav aria-hidden="true" class="menu" id="menu" tabindex="-1">
		<div class="menu-scroll">
			<div class="menu-content">
				<a class="menu-logo" href="../index.html">BZOJ离线题库</a>
				<ul class="nav">
					<li>
						<a class="waves-attach" data-toggle="collapse" href="#problems">题目</a>
						<ul class="menu-collapse collapse in" id="problems">
							<li>
								<a class="waves-attach" href="../index.html">主页</a>
							</li>
							<li>
								<a class="waves-attach" href="../list.html">题目列表</a>
							</li>
						</ul>
					</li>
					<li>
						<a class="collapsed waves-attach" data-toggle="collapse" href="#about">关于</a>
						<ul class="menu-collapse collapse" id="about">
							<li>
								<a class="waves-attach" href="../about.html">关于此项目</a>
							</li>
						</ul>
					</li>
					
				</ul>
			</div>
		</div>
	</nav>
	<main class="content">
		<div class="content-header ui-content-header">
			<div class="container">
				<h1 class="content-heading">
                [Usaco2009 Oct]Bessie's Weight Problem 贝茜的体重问题                </h1>
                <p>时间限制：3s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
		</div>
		<div class="container">
			<section class="content-inner margin-top-no">
				<div class="row">
					<div class="col-lg-13 col-md-13">
						<div class="card margin-bottom-no">
							<div class="card-main">
								<div class="card-inner">
									
                                <h3>题目描述</h3><p><div><span style="font-size: medium">&nbsp;&nbsp;&nbsp;&nbsp;贝茜像她的诸多姊妹一样，因为从约翰的草地吃了太多美味的草而长出了太多的赘肉．所以约翰将她置于一个及其严格的节食计划之中．她每天不能吃多过H(5&le;日&le;45000)公斤的干草．贝茜只能吃一整捆干草；当她开始吃一捆干草的之后就再也停不下来了．她有一个完整</span></div>
<div><span style="font-size: medium">的N(1&le;N&le;500)捆可以给她当作晚餐的干草的清单．她自然想要尽量吃到更多的干草．很自然地，每捆干草只能被吃一次（即使在列表中相同的重量可能出现2次，但是这表示的是两捆干草，其中每捆干草最多只能被吃掉一次）．</span></div>
<div><span style="font-size: medium">&nbsp;&nbsp;&nbsp;&nbsp;给定一个列表表示每捆干草的重量Si(1&le;Si&le;H)，求贝茜不超过节食的限制的前提下可以吃掉多少干草（注意一旦她开始吃一捆干草就会把那一捆干草全部吃完）．</span></div></p><hr/><h3>输入格式</h3><p><div><span style="font-size: medium">&nbsp;&nbsp;&nbsp;&nbsp;第1行：两个由空格隔开的整数日和N.</span></div>
<div><span style="font-size: medium">&nbsp;&nbsp;&nbsp;&nbsp;第2到第N+1行：第i+l行是一个单独的整数，表示第i捆干草的重量Si．</span></div></p><hr/><h3>输出格式</h3><p><div>&nbsp;</div>
<div><span style="font-size: medium">&nbsp;&nbsp;&nbsp;&nbsp;一个单独的整数表示贝茜在限制范围内最多可以吃多少公斤的干草．</span></div></p><hr/><h3>样例输入</h3><pre>56 4
15
19
20
21</pre><hr/><h3>样例输出</h3><pre>56</pre><hr/><h3>提示</h3><p><p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"><span lang="EN-US"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有四捆草，重量分别是</span><span lang="EN-US"><font face="Times New Roman">15</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">19</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">20</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</span><span lang="EN-US"><font face="Times New Roman">21.</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">贝茜在</span><span lang="EN-US"><font face="Times New Roman">56</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">公斤的限制范围内想要吃多少就可以吃多少．</span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"><span lang="EN-US"><font face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">贝茜可以吃</span><span lang="EN-US"><font face="Times New Roman">3</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">捆干草（重量分别为</span><span lang="EN-US"><font face="Times New Roman">15</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">20</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</span><span lang="EN-US"><font face="Times New Roman">21</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）．恰好达到她的</span><span lang="EN-US"><font face="Times New Roman">56</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">公斤的限制．</span></font></p>
<p></p></p><hr/><h3>题目来源</h3><p>Gold</p>
								</div>
							</div>
						</div>
					</div>
				</div>
				
				
			</section>
		</div>
	</main>

	<div class="fbtn-container">
		<div class="fbtn-inner">
			<a class="fbtn fbtn-lg fbtn-brand-accent waves-attach waves-circle waves-light waves-effect" data-toggle="dropdown" aria-expanded="true"><span class="fbtn-text fbtn-text-left">Menu</span><span class="fbtn-ori icon">apps</span><span class="fbtn-sub icon">close</span></a>
			<div class="fbtn-dropup">
				<a class="fbtn fbtn-brand waves-attach waves-circle waves-light waves-effect" href="../list.html" target="_self"><span class="fbtn-text fbtn-text-left">题目列表</span><span class="icon">menu</span></a>
				<a class="fbtn fbtn-green waves-attach waves-circle waves-effect" href="../index.html" target="_self"><span class="fbtn-text fbtn-text-left">返回主页</span><span class="icon">home</span></a>
				<a class="fbtn waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/submitpage.php?id=3407" target="_blank"><span class="fbtn-text fbtn-text-left">提交代码</span><span class="icon">send</span></a>
				<a class="fbtn fbtn-orange waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/wttl/wttl.php?pid=3407" target="_blank"><span class="fbtn-text fbtn-text-left">试题讨论</span><span class="icon">chat</span></a>
				
			</div>
		</div>
	</div>

	<!-- js -->
	<script src="../js/jquery.min.js"></script>
	<script src="../js/base.min.js"></script>
	<script src="../js/project.min.js"></script>
</body>
</html>